Cyclists riding toward a green bike signal
May 17, 2018
Principal Investigator: Sirisha Kothuri, Portland State University
Learn more about this research by viewing the Executive Summaries, related presentations, and the full Final Report on each Project Overview page.

Sirisha Kothuri, a Portland State University research associate, has recently completed two distinct studies taking different approaches to advancing bicycle safety. Kothuri will lead a Sept. 13 workshop on Bicycle/Pedestrian Focused Signal Timing Strategies along with Peter Koonce, the division manager of Signals & Street Lighting for the City of Portland. The half-day workshop will be part of Transportation and Communities 2018, a two-day intensive training event for transportation professionals.

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Jan 06, 2017

Pedestrians often have to wait longer than drivers for the light to change. Increased delay for pedestrians can lead to noncompliance, which can have a negative impact on safety.

Most planning efforts geared toward those on foot have tended to focus on safety, but pedestrian efficiency is also important.

NITC researchers will present on this topic at the annual meeting of the Transportation Research Board in Washington, D.C. Learn more and download our guide to the conference.

Sirisha Kothuri, a research associate in civil engineering at Portland State University, is the principal investigator on this NITC research project, an extension of her doctoral dissertation work.

Kothuri and co-investigator Edward Smaglik of Northern Arizona University will present their work Sunday, Jan. 8 in a workshop at the TRB conference. Their research looked at pedestrian strategies around the country to determine if they were primarily safety or efficiency measures.

“Generally, pedestrian strategies, if they exist at all, are safety based,” Kothuri said.

So the first task was to identify efficiency-based strategies for pedestrians. Then the research team undertook a...

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